Igusa–Liu–Paquette extension conjecture

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Let SS be a simple module over an artin algebra. Igusa–Liu–Paquette extension conjecture. If

Ext⁡1(S,S)≠0,\operatorname{Ext}^1(S,S)\neq 0,

then

Ext⁡i(S,S)≠0\operatorname{Ext}^i(S,S)\neq 0

for infinitely many integers ii. This is presented as a stronger statement related to the Strong No Loop Conjecture; the source attributes it to K. Igusa, S. Liu, and C. Paquette and does not state that it has been resolved.

References

Primary source

Kosmas Diveris and Marju Purin, “Vanishing of self-extensions over symmetric algebras”, arXiv:1309.1088 (2013).

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